🚀 go-pugleaf

Advantages are :

1.) You can receive email with Eudora or Netscape, no need for AddMail.

2.) You can receive your email from anywhere in the world as long as
you're connected to part of the internet.

SMTP can only transfer within the host server's network.

POP3 can serve to any network with the appropriate password.

The last info I have on Demon prices is from Jan 1995.  It was £25 for set
up andŠwait for itŠ£180 per year for the service.  You should get a hold
of the latest version of the Demon POP3.txt document from the ftp server. 
It explains all about POP3 and Demon's service of it.

-- 
------------------------------------------------------------
© Andrew McNaughton.  andrew@patsy.demon.co.uk

CCIS BBS Edinburgh: Andrew_W._McNaughton@ccis.org.uk

University of Glasgow : 9404356

University email
Computing Science Department : mcnaugha@dcs.gla.ac.uk
Computing Service Novell server : 9404356m@student.gla.ac.uk
------------------------------------------------------------

In article <364.6677T1342T1366@kncowans.demon.co.uk> kevin@kncowans.demon.co.uk (K.N.Cowans) writes:
> What are the advantages and disadvantages of using a POP3 mail feed instead of
> SMTP.

The advantage is that mail can be addressed to your ISP instead of to your
own machine.  If you have a static address, this doesn't matter.  If you
have a dynamic address, on the other hand, it's *essential*.

> Also, does anybody know how much it costs to set up a POP3 mail account on
> Demon.

In the U.S., POP3 seems to be a standard feature.  But then, everybody has
switched to PPP and dynamic connections.

--
 *  From the disk of: | jshaffer@mail.csrlink.net      | "there's a hell of
 Jim Shaffer, Jr.     |                            //  | a good universe
 37 Brook Street      | Watch this space:         //   | next door; let's go"
 Montgomery, PA 17752 | sig under construction \\//    |     (e.e. cummings)

In article <364.6677T1342T1366@kncowans.demon.co.uk>,
K.N.Cowans <kevin@kncowans.demon.co.uk> wrote:
>Hello all
>
>What are the advantages and disadvantages of using a POP3 mail feed instead of
>SMTP.

There isn't really such a thing as a POP3 feed.  POP3 is for a client to read
a single mailbox (although there are a few non-standard POP3 services around
these days).  SMTP and UUCP are feeding protocols, they can deliver to multiple
mailboxes in multiple domains and fully preserve envelope information.

The main advantages of POP3 are:

- there is Windows and Mac software which is user friendly for accessing 
  single POP3 mailboxes.
- transfer is controlled by the dial up site, so you don't have to rely
  on hacks in the ISP to send when you connect, and don't have to be ready
  immediately.

The main advantages of SMTP are:

- it is a full feed system allowing multiple domains and mailboxes.
- it is real time.
- it fully supports internet style addressing in headers and envelopes.
- it is very good at ensuring that delivery failures are reported.

The main advantages of UUCP are:

- it is optimised for dial up use.
- it is a full feed system.
- modern implementations can handle most envelope address styles.
- both upload and download are done in a fast batch mode.

The main disadvantages of POP3 are:

- it destroys envelope information.
- it only supports a single mailbox (there are fudged solutions to this).

The main disadvantages of SMTP are:

- it is controlled by the sending side.
- it is not designed to minimise connection time, but rather to do
  real time error reporting.

The main disadvantages of UUCP are:

- the actual mail handling part is not well standardised.
- it is unfashionable, so those ISPs going after the fashion market don't
  support it.
- the best mode, batched SMTP, is not commonly supported.
- support for infrastructure failure reporting can be patchy.


Note that UUCP can be run over TCP, so you can still Web browse during the
transfer.

-- 
David Woolley, London, England          david@djwhome.demon.co.uk

In <andrew-1404960245100001@patsy.demon.co.uk>, andrew@patsy.demon.co.uk (Andrew McNaughton) wrote:
> Advantages are :
> 1.) You can receive email with Eudora or Netscape, no need for AddMail.
> 2.) You can receive your email from anywhere in the world as long as
> you're connected to part of the internet.
> 
> SMTP can only transfer within the host server's network.

I don't know where you got this idea. It's certainly not true.

> POP3 can serve to any network with the appropriate password.

SMTP isn't so restricted. You can send and recieve email to/from ANY
server anywhere on the internet; no password required.

SMTP & POP are meant to solve different problems.

SMTP is a Mail Transport system. It's designed for moving Mail around
the network. It was designed in the good old days when everyone who
had the tools and knowledge to forge email had reasons for not wanting
mail forgery to work. It's primarily used for sending mail between
peer computers of various kinds. High-end implementations don't ever
depend on some other computer to touch the mail, unless there is data
in the internet-wide hosts database (DNS) instructing it to do so.

POP is a Post Office Protocol. A host in the SMTP peer network acts
like a post office - it collects mail from other SMTP hosts on the
internet and holds it until the POP client comes to collect it.
Likewise, it will accept mail from POP clients for delivery elsewhere
on the internet. Since POP was designed for use in hostile
environments (your local university network, for instance) it includes
user identification and authorization features. POP (2; I haven't
checked 3) always depend on talking to an intermediate host that is
filling the role of the Post Office to deliver mail. From the above,
it appears that POP3 can deal with multiple mail servers and use any
of them as the gateway if required.

	<mike

In article <19960414.747A1D0.1341C@contessa.phone.net>, Mike Meyer writes:

> POP is a Post Office Protocol. A host in the SMTP peer network acts
> like a post office - it collects mail from other SMTP hosts on the
> internet and holds it until the POP client comes to collect it.
> Likewise, it will accept mail from POP clients for delivery elsewhere
> on the internet. Since POP was designed for use in hostile
> environments (your local university network, for instance) it includes
> user identification and authorization features. POP (2; I haven't
> checked 3) always depend on talking to an intermediate host that is
> filling the role of the Post Office to deliver mail. From the above,
> it appears that POP3 can deal with multiple mail servers and use any
> of them as the gateway if required.

Most POP clients send mail via SMTP.  So, when comparing SMTP to POP it
really only makes sense to compare the methods of receiving mail.

In a perfect world, SMTP always wins.  Mail comes and goes as quickly as
it possibly can.  Packets are only transmitted or received when mail is
transmited and received.

In our less perfect world, the environment neccessary to support SMTP
reception (DNS entries, fixed IP, sendmail or equiv, 24 hour uptime) are a
bit excessive when done on a per user basis.  POP goes a long way toward
doing away with these problems.  On the minus side, mail delivery is only
as fast as your polling interval.  And the more you poll, the more network
bandwidth and host resources you use.

If you don't have a full time connection, SMTP is not an option.  POP
still works, albeit not as well as with a full time connection.  The cost
of polling goes way up since it means bringing the link up.  Most people
just poll manually or only when the link is already up.

UUCP is an alternative for dial up connections.  It makes the most
effecient use of the link.  Further, it supposed to be possible to set up
"demand" connections.  This would get you just-in-time mail delivery
almost as good as SMTP.  Unfortunately, UUCP configuration is even worse
than SMTP and it is getting harder and harder to find ISP's with the
expertese to set up *their* end.

An intruiging future prospect is SMTP with bi-directional dial up ISDN. 
Bring up the link only when there is data to transmit.  Drop the link when
it goes quiet.  Configuration complexity is worse than SMTP and perhaps
worse than UUCP.  However, it would allow very fast just-in-time delivery
without the need for a leased line.

----
"You get more with a kind word and a 2x4 then with a kind word alone"
Remember the home hobbyist computer: Born 1975, died April 29, 1994

K.N.Cowans (kevin@kncowans.demon.co.uk) wrote:
> Hello all

> What are the advantages and disadvantages of using a POP3 mail feed instead of
> SMTP.

> Also, does anybody know how much it costs to set up a POP3 mail account on
> Demon.

> Thanks in advance

> Kevin

> --
> EMail            kevin@kncowans.demon.co.uk
> PGP FingerPrint  A2 FD E7 28 DC DB A0 67  D2 75 2F 39 7B 38 C2 77

> Time Sent        13-Apr-96 22:20:45 (UK)
> --

I thought POP3 came with a Un*x distribution. It did with mine.
--
 ______________ ____________________________________
(    \    /    |                                    |
_)EAN \/\/ALKER| walkers@gaia.ecs.csus.edu          |
|  Amiga1200   | http://gaia.ecs.csus.edu/~walkers/ | 
|______________|____________________________________|
There are no absolutes...that's the absolute truth!

In article <6w+py*jA2@wolf359exile.org>, Eric Edwards
<eric@wolf359exile.org> writes

>If you don't have a full time connection, SMTP is not an option.

such are the perils of cross-posting...

demon.ip.support (where this thread also appears), is the main platform
independant support newsgroup for the United Kingdom ISP Demon Internet.
All of their 60K+ dialup users have their mail delivered by SMTP.

This is done using MX records pointing at store and forward gateways
which then deliver the mail when the login system detects their arrival
online....

Of course, without such a system, SMTP would not be the mail delivery
system of choice.

[rest of reasoned remarks snipped]

-- 
richard                      Richard Clayton         T U R N P I K E  Ltd
                                                     tel: +44 1306 747747
"Assembly of Japanese bicycle require great peace of mind" quoted in ZAMM

On Sat, 13 Apr 1996 21:24:37 GMT, kevin@kncowans.demon.co.uk
(K.N.Cowans) wrote:

>Hello all
>
>What are the advantages and disadvantages of using a POP3 mail feed instead of
>SMTP.
>
>Also, does anybody know how much it costs to set up a POP3 mail account on
>Demon.

Mirage Networking offer POP3 email accounts for �1 +VAT a month.  If
interested e-mail me at: zaheer@mirage.co.uk or call me on 0973-739582

Zaheer Merali